Report Says Meta’s ‘Watermelon’ Model Has Reached GPT-5.5-Level Performance Internally
A Yellow.com report says Meta told staff its internal ‘Watermelon’ AI model has caught GPT-5.5, signaling sharper competition in frontier models.
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GPT-5.5
Only Three AI Models Survived Princeton's 500-Day Startup Simulation
Princeton's CEO-Bench study found only Claude Fable 5, Claude Opus 4.8, and GPT-5.5 finished above starting capital in a 500-day fictional company simulation.
GPT-5.5 Cyber Tests Put OpenAI Near Anthropic Mythos
UK cyber evaluations found GPT-5.5 comparable to Claude Mythos, renewing debate over frontier model access and safety controls.
OpenAI Releases GPT-5.5: Its Smartest and Most Intuitive AI Model Yet
OpenAI unveiled GPT-5.5, its newest flagship AI model, excelling at coding, research, and agentic tasks with limited instructions.
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